Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 768 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.12 × 13 =
2. 2.13 × 11 =
3. 3.13 × 13 =
4. 4.115 × 105 =
5. 5.11 × 13 =
6. 6.980 × 995 =
7. 7.96 × 91 =
8. 8.108 × 85 =
9. 9.12 × 7 =
10. 10.108 × 110 =
11. 11.89 × 93 =
12. 12.13 × 13 =
13. 13.9 × 9 =
14. 14.12 × 12 =
15. 15.13 × 13 =
16. 16.1016 × 1012 =
17. 17.13 × 11 =
18. 18.106 × 105 =
19. 19.110 × 115 =
20. 20.1006 × 1035 =
21. 21.9 × 9 =
22. 22.103 × 105 =
23. 23.9 × 6 =
24. 24.11 × 13 =
25. 25.103 × 105 =
26. 26.969 × 965 =
27. 27.1002 × 997 =
28. 28.110 × 99 =
29. 29.1004 × 969 =
30. 30.111 × 89 =
31. 31.101 × 101 =
32. 32.94 × 86 =
33. 33.1022 × 987 =
34. 34.9 × 6 =
35. 35.103 × 94 =
36. 36.1012 × 985 =
37. 37.973 × 980 =
38. 38.994 × 988 =
39. 39.14 × 13 =
40. 40.99 × 99 =

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